20681857560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{3889}}^1$

素因数の和:4410

約数の個数: 256

約数和(自身を含む): 76540262400

約数和(自身を除く): 55858404840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 487, 520, 546, 728, 780, 840, 910, 974, 1092, 1365, 1461, 1560, 1820, 1948, 2184, 2435, 2730, 2922, 3409, 3640, 3889, 3896, 4870, 5460, 5844, 6331, 6818, 7305, 7778, 9740, 10227, 10920, 11667, 11688, 12662, 13636, 14610, 15556, 17045, 18993, 19445, 19480, 20454, 23334, 25324, 27223, 27272, 29220, 31112, 31655, 34090, 37986, 38890, 40908, 44317, 46668, 50557, 50648, 51135, 54446, 58335, 58440, 63310, 68180, 75972, 77780, 81669, 81816, 88634, 93336, 94965, 101114, 102270, 108892, 116670, 126620, 132951, 136115, 136360, 151671, 151944, 155560, 163338, 177268, 189930, 202228, 204540, 217784, 221585, 233340, 252785, 253240, 265902, 272230, 303342, 326676, 353899, 354536, 379860, 404456, 408345, 409080, 443170, 466680, 505570, 531804, 544460, 606684, 653352, 664755, 707798, 758355, 759720, 816690, 886340, 1011140, 1061697, 1063608, 1088920, 1213368, 1329510, 1415596, 1516710, 1633380, 1769495, 1772680, 1893943, 2022280, 2123394, 2659020, 2831192, 3033420, 3266760, 3538990, 3787886, 4246788, 5308485, 5318040, 5681829, 6066840, 7077980, 7575772, 8493576, 9469715, 10616970, 11363658, 13257601, 14155960, 15151544, 18939430, 21233940, 22727316, 24621259, 26515202, 28409145, 37878860, 39772803, 42467880, 45454632, 49242518, 53030404, 56818290, 66288005, 73863777, 75757720, 79545606, 98485036, 106060808, 113636580, 123106295, 132576010, 147727554, 159091212, 172348813, 196970072, 198864015, 227273160, 246212590, 265152020, 295455108, 318182424, 344697626, 369318885, 397728030, 492425180, 517046439, 530304040, 590910216, 689395252, 738637770, 795456060, 861744065, 984850360, 1034092878, 1378790504, 1477275540, 1590912120, 1723488130, 2068185756, 2585232195, 2954551080, 3446976260, 4136371512, 5170464390, 6893952520, 10340928780, 20681857560]

約数ペア:

[(1, 20681857560), (2, 10340928780), (3, 6893952520), (4, 5170464390), (5, 4136371512), (6, 3446976260), (7, 2954551080), (8, 2585232195), (10, 2068185756), (12, 1723488130), (13, 1590912120), (14, 1477275540), (15, 1378790504), (20, 1034092878), (21, 984850360), (24, 861744065), (26, 795456060), (28, 738637770), (30, 689395252), (35, 590910216), (39, 530304040), (40, 517046439), (42, 492425180), (52, 397728030), (56, 369318885), (60, 344697626), (65, 318182424), (70, 295455108), (78, 265152020), (84, 246212590), (91, 227273160), (104, 198864015), (105, 196970072), (120, 172348813), (130, 159091212), (140, 147727554), (156, 132576010), (168, 123106295), (182, 113636580), (195, 106060808), (210, 98485036), (260, 79545606), (273, 75757720), (280, 73863777), (312, 66288005), (364, 56818290), (390, 53030404), (420, 49242518), (455, 45454632), (487, 42467880), (520, 39772803), (546, 37878860), (728, 28409145), (780, 26515202), (840, 24621259), (910, 22727316), (974, 21233940), (1092, 18939430), (1365, 15151544), (1461, 14155960), (1560, 13257601), (1820, 11363658), (1948, 10616970), (2184, 9469715), (2435, 8493576), (2730, 7575772), (2922, 7077980), (3409, 6066840), (3640, 5681829), (3889, 5318040), (3896, 5308485), (4870, 4246788), (5460, 3787886), (5844, 3538990), (6331, 3266760), (6818, 3033420), (7305, 2831192), (7778, 2659020), (9740, 2123394), (10227, 2022280), (10920, 1893943), (11667, 1772680), (11688, 1769495), (12662, 1633380), (13636, 1516710), (14610, 1415596), (15556, 1329510), (17045, 1213368), (18993, 1088920), (19445, 1063608), (19480, 1061697), (20454, 1011140), (23334, 886340), (25324, 816690), (27223, 759720), (27272, 758355), (29220, 707798), (31112, 664755), (31655, 653352), (34090, 606684), (37986, 544460), (38890, 531804), (40908, 505570), (44317, 466680), (46668, 443170), (50557, 409080), (50648, 408345), (51135, 404456), (54446, 379860), (58335, 354536), (58440, 353899), (63310, 326676), (68180, 303342), (75972, 272230), (77780, 265902), (81669, 253240), (81816, 252785), (88634, 233340), (93336, 221585), (94965, 217784), (101114, 204540), (102270, 202228), (108892, 189930), (116670, 177268), (126620, 163338), (132951, 155560), (136115, 151944), (136360, 151671)]